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CA2338484A1 - Decapant pour aciers speciaux - Google Patents

Decapant pour aciers speciaux Download PDF

Info

Publication number
CA2338484A1
CA2338484A1 CA002338484A CA2338484A CA2338484A1 CA 2338484 A1 CA2338484 A1 CA 2338484A1 CA 002338484 A CA002338484 A CA 002338484A CA 2338484 A CA2338484 A CA 2338484A CA 2338484 A1 CA2338484 A1 CA 2338484A1
Authority
CA
Canada
Prior art keywords
acid
pickling
agent
compound
iron
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Abandoned
Application number
CA002338484A
Other languages
English (en)
Inventor
Eckart Schonfelder
Gunther Schwane
Harald Werner
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Chemetall GmbH
Original Assignee
Individual
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Publication of CA2338484A1 publication Critical patent/CA2338484A1/fr
Abandoned legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23G—CLEANING OR DE-GREASING OF METALLIC MATERIAL BY CHEMICAL METHODS OTHER THAN ELECTROLYSIS
    • C23G1/00—Cleaning or pickling metallic material with solutions or molten salts
    • C23G1/02—Cleaning or pickling metallic material with solutions or molten salts with acid solutions
    • C23G1/08—Iron or steel
    • C23G1/086—Iron or steel solutions containing HF
    • C—CHEMISTRY; METALLURGY
    • C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23G—CLEANING OR DE-GREASING OF METALLIC MATERIAL BY CHEMICAL METHODS OTHER THAN ELECTROLYSIS
    • C23G1/00—Cleaning or pickling metallic material with solutions or molten salts
    • C23G1/02—Cleaning or pickling metallic material with solutions or molten salts with acid solutions
    • C23G1/025—Cleaning or pickling metallic material with solutions or molten salts with acid solutions acidic pickling pastes

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Cleaning And De-Greasing Of Metallic Materials By Chemical Methods (AREA)
  • Detergent Compositions (AREA)
  • Glass Compositions (AREA)
  • Catalysts (AREA)

Abstract

L'invention concerne un décapant aqueux, sans agent mouillant ni émulsifiant, pour aciers spéciaux. Ce décapant à base d'acide sulfurique ou d'acide phosphorique ou de fluorure d'hydrogène contient (à chaque fois par rapport à 100 % en poids de substance) : 1,4 à 16 % en poids d'acide sulfurique ou 2,0 à 30 % en poids d'acide phosphorique, ainsi que 0,5 à 14 % en poids de fluorure d'hydrogène et 0,5 à 15,5 % en poids d'un dérivé nitré aromatique soluble dans l'acide. Aucun dérivé ferrique n'est ajouté audit décapant. On peut ajouter, uniquement dans la phase initiale, un agent d'oxydation qui oxyde le composé ferreux en composé ferrique. Il est particulièrement avantageux d'utiliser du sulfonate de m-nitrobenzène et/ou du 3-nitrophtalate comme dérivé nitré aromatique soluble dans l'acide. On peut utiliser ce décapant sous forme de bain décapant et, en ajoutant 2,5 à 5,5 % en poids de magnésium et/ou d'un dérivé de magnésium (calculé en tant que Mg), l'appliquer par pulvérisation ou au pinceau.
CA002338484A 1998-07-29 1999-07-22 Decapant pour aciers speciaux Abandoned CA2338484A1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE19833990.9 1998-07-29
DE19833990A DE19833990A1 (de) 1998-07-29 1998-07-29 Beizmittel für Edelstähle
PCT/EP1999/005226 WO2000006797A1 (fr) 1998-07-29 1999-07-22 Decapant pour aciers speciaux

Publications (1)

Publication Number Publication Date
CA2338484A1 true CA2338484A1 (fr) 2000-02-10

Family

ID=7875604

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002338484A Abandoned CA2338484A1 (fr) 1998-07-29 1999-07-22 Decapant pour aciers speciaux

Country Status (6)

Country Link
US (1) US7041629B2 (fr)
EP (1) EP1100982B1 (fr)
AT (1) ATE229098T1 (fr)
CA (1) CA2338484A1 (fr)
DE (2) DE19833990A1 (fr)
WO (1) WO2000006797A1 (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10160318A1 (de) * 2001-12-07 2003-06-18 Henkel Kgaa Verfahren zum Beizen von martensitischem oder ferritischem Edelstahl
DE102009038795A1 (de) * 2009-08-25 2011-05-05 Poligrat Gmbh Beizverfahren für Edelstahl
DE102013101629A1 (de) 2013-02-19 2014-08-21 Wolfgang DAMBACHER Vorrichtung und Verfahren zur Oberflächenbehandlung von Werkstücken

Family Cites Families (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2339467A (en) * 1942-02-13 1944-01-18 Hoe & Co R Mechanism for registering printing plates
US2698781A (en) * 1953-04-27 1955-01-04 Enthone Accelerating action of acids on metals
US3239467A (en) * 1962-02-15 1966-03-08 Lord Corp Metal cleaning and treating compositions
GB1279834A (en) * 1968-10-07 1972-06-28 Chugai Kasei Co Ltd Improvements in metal cleaning and etching compositions
DE2507059A1 (de) * 1975-02-19 1976-09-02 Basf Ag Verfahren zur reinigung von eisen enthaltenden metallgegenstaenden
JPS5610396A (en) * 1979-07-07 1981-02-02 Nobuo Miyazawa Additive for acid bath for descaling of stainless steel
DE3105508A1 (de) * 1981-02-14 1982-09-02 Metallgesellschaft Ag, 6000 Frankfurt Beiz- und entrostungspaste fuer metalle
CA1185152A (fr) * 1982-01-22 1985-04-09 Thomas W. Bleeks Decapage selectif par voie chimique des surfaces enduites des substrats en super-alliage
DE3530132A1 (de) * 1985-08-23 1987-02-26 August Wittig Oberflaechen beiz- und entrostungspaste zum reinigen von metalloberflaechen insbesondere aus edelstahl und/oder aluminium u. aluminiumlegierungen
US4971631A (en) * 1988-03-07 1990-11-20 Bernard Lietaer Compositions and methods for cleaning hard surfaces
FR2657888B1 (fr) * 1990-02-08 1994-04-15 Ugine Aciers Procedes de decapage de materiaux en acier inoxydable.
FR2673200A1 (fr) * 1991-02-25 1992-08-28 Ugine Aciers Procede de surdecapage de materiaux en acier tels que les aciers inoxydables et les aciers allies.
FR2683551B1 (fr) * 1991-11-07 1994-09-16 Ugine Sa Procede de decapage de materiaux en acier en continu sur une ligne de traitement.
DE4237021C1 (de) * 1992-11-02 1994-02-10 Poligrat Gmbh Mittel zum Beizen der Oberfläche von Chromnickelstählen und Chromstählen sowie Verwendung des Mittels
FR2721328B1 (fr) * 1994-06-15 1996-09-06 Ugine Sa Procédé de décapage de matériaux métalliques, notamment en acier allié, en acier inoxydable ou en alliage de titane, par une solution du type contenant des ions ferriques en milieu acide.
SE504733C2 (sv) * 1994-06-17 1997-04-14 Ta Chemistry Ab Förfarande för betning
US5711996A (en) * 1995-09-28 1998-01-27 Man-Gill Chemical Company Aqueous coating compositions and coated metal surfaces
US5702534A (en) * 1996-05-24 1997-12-30 Armco Inc. Hydrogen peroxide pickling of stainless steel

Also Published As

Publication number Publication date
DE19833990A1 (de) 2000-02-10
EP1100982B1 (fr) 2002-12-04
DE59903669D1 (de) 2003-01-16
ATE229098T1 (de) 2002-12-15
US20040053801A1 (en) 2004-03-18
US7041629B2 (en) 2006-05-09
WO2000006797A1 (fr) 2000-02-10
EP1100982A1 (fr) 2001-05-23

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Legal Events

Date Code Title Description
EEER Examination request
FZDE Discontinued